Cita APA

Laurence, P. N., & Lowrie, R. S. (1968). Structured questions: Elementary. Pergamon Press.

Citación estilo Chicago

Laurence, P. N., y R. S. Lowrie. Structured Questions: Elementary. Pergamon Press, 1968.

Cita MLA

Laurence, P. N., y R. S. Lowrie. Structured Questions: Elementary. Pergamon Press, 1968.